Demountable rim.



C. L. PETERS AND A. L. JOHNSON.

DEMOUNTABLE RIM.

APPLlCATION FILED Ausqs, r911. RENEWED MAY 27,1919.

1,326,418. Patented Dec. 30,1919.

2 SHEETS-SHEET I.

a. 4 mcwym e 9' L. PETERS AND A. L. EGHNSON.

DHIOUNTABLE mm 1917- RENEWED MAY 27 1919,

Patented Dec. 30,1919" 2 SHEETSSHEET 2.

APPLiCATiGH mm Aums,

W1". 6? ZEeW/e hil nssren'ons to Two sear ermine rarnnr ornion @HABILEQL. PETERS AND ALVIH L. JOHNSQE, 0F WURCESTER, MASSACHUSETTS COMPANY,1111's., 05 WORCESTER, MASSACHU- ETTE, A GUEQPQEATION OEYDELAWARE.

DETEUUNTABLE Specification of Letters Patent.

Patented Dec. so, i919.

Application flied August 13, 1917, Serial No. 185,534. Renewed May a7,1919. Serial No. 300,183.

' Massachusetts, have invented a new and useful Demountable Rim, ofwhich the follow-- ing is a specification.

lhis invention'relates to a: demountable rim for automobile and othervehicle tires, and the principal objects thereof are to provide aconstruction consisting'of few parts, most of them absolutely stationaryand capable of being unlocked and detached from each other in anextremely simplemanner and yet of such construction that there is nopossibility of accidental displacement of the parts or reduction ofnoise by rattling when in use. he invention also involves severalfeatures ofconstruction as will appear.

Reference is to be'had to the accompany in drawings, in which-- igure 11s a side elevation of a demonntable rim constructed in accordance withthis invention and shown completely assembled;

Fig. 2 is a sectional view on the line 2-2 in Fig. I greatly enlarged;

Fig. 3 is a view of the parts shown in Fig. 1 detached from each other;

Fig. 4 is a side elevation on enlarged. scale of the locking end of themovable locking member and connected parts; v V

Fig. 5 is a view of the same taken in the direction of the arrow 5 inFig. 4;

Fig. 6 is an inside view showing the means for connecting the'twosections of the rim together; and

Fig. 7 is a sectional perspective view showing how the parts aredismounted.

In external appearance this rim looks very similar to one of the rimsnow on the market and consisting of a single ring, but the base of therim in this case is made up of two parts 10 and 10. ()ne of these'partsor sections as 10 constitutes less than a semicircle, and the other part10 more than a semicircle and together they constitute a complete circleor cylinder for receiving the tire and holding it on their outercircumferences. The'surfaces 12 at which they cdme together are arrangedat an angle to the axis as indi- 1 fixed to one of the sections, and theother in locked, can be moved axially to disengage it entirely from theother. For example, in

Fig. 6 the part 10 can be moved away to the ri ht leaving the tire onthe part 10.

/ he beads of the tire are preferably on gaged by two complete rings 18which normally stay on the tire and are the parts that this demountablerim engages for locking purposes. On one side both of the sections 10and 10 are provided with fixed flanges 19, preferably integral forengaging the ring 18 on that side. For holding it on the other edge, oneof the parts as for example 10, is provided. with a small and stationaryflange 20 for a similar purpose. In these drawings, however, it is shownas provided inside this flange with a portion of a ring 11 but the parts11 and 20 do not need to be made separately unless desired, but at anyrate they 1 hold the ring 18 as far as they go. The correspondingelement 11 on the section 10 .is detach-able. It is provided with a hook17 are assembled with the tire in position the right-hand hook in F ig.3 can be placed in the right-hand slot 15 and then the locking memberswung around into closed position as shown in Fig. 1 until the left-handhook also comes into the corresponding slot. The members 11 and 11 areL-shaped in cross section and the bead ring 18 on that side overliestheir circumferential flanges. The ring 11 is held behind the flanges 20so that it cannot be removed axially.

. in order to disengage this locking memher 11, the bead ring 18 on oneside is pushed back as shown in dotted lines in Fig. 2' and ascrew-driver or similar instrument is forced in at one side through asocketlG and under the locking ring. This can then be pried up so as tospread the locking member, loosen the hook 17 from its notch, and allowthe member 11 to be swung around its other hook as a pivot and entirelydetached. When this is accomplished the only thing that absolutelyprevents the displace- Bil tion.

ment of one segment from the other is removed and the longer segment canbe detached by drawing it through the tire in the opposite direction asshown in Fi of the two rim segments 10 and 10 so that one of them has alonger arc than the other is an important feature enabling us to makethis device out of two, pieces instead of three as has been proposedbefore, and also per mitting the use of a single movable locking member11* for efi'ectively looking all parts together lln tliis way the deviceis reduced. to its simplest terms and yet is made absolutely sure in itsfunction of holding the parts together.

The locking member 11 being more than a semi-circle in length, holdsitself in position by its natural resiliency because its ends are ashorter distance apart than the length of the diameter. Therefore evenit the ring 18 could be moved back accidentally the locking member wouldstill hold because the resistance that it ofiers to the forcing of theseends farther apart must be overcome'to loosen it. Although hook-shapedends 17 are employed they do not have to be undercut.

it will be observed that the open end of the hook 13 is directed towardvthe narrow side of the long section 10 and that the hook is slantedback substantially parallel with the meeting ends of the two sections.This facilitates withdrawal of the short sec- Although we haveillustrated and described only a single form of the invention we areaware of the fact that modifications can be made therein by any personskilled in the are without departing from the scope of the invention asexpressed in the claims. Therefore We do not wish to be limited to allthe details of construction herein shown and described except asexpressed in the claims,

' but what we do claim is 1. A demountable rim having a base consistingof two sections, one having an arc of more than a semicircle and the 01her less than a semicircle so that together they constitute a completecircular rim, the longer one of said parts being movable in an axialdirection, said parts having stationary means thereon for detachablyholding them to gether and positively and permanently prethe shortersection from moving intoward the center, and a movable for preventingthei venting wardly locking device detached.

2. A demountable rim having a base consisting of two sections, of morethan a semicircle and the other less than a semicircle so that togetherthey constitute a complete circular rim,.said parts having'stationarymeans thereon for detachablyholding them together comprising a 7 Fromthis it will be seen that the making of more than r being one having anarc arr: Lfiaoflld pin fixed to one member and a hook. fixed withrespect to the other member and ngaging said pin, and a movable lockingring at the edge for preventing their being detached.

3. A demountable rim having a base consisting of two sections, onehaving an arc of more than a semicircle and the other less than asemicircle so that together they constitute a complete circular rim, oneof said parts being movable in an axial. directions, said parts havingstationary means thereon for detachably holding them together, theshorter of said sections having fixed flanges on both edges for holdingthe tire in position, the longer one having a fixed flange located alongone edge, and a movable locking device for preventing their beingdetached located along the other edge.

4. A demou'ntable rim comprising two sections of a general channel shapeto hold the tire, stationary hooks and pins for holding said sectionstogether, and a locking device consisting of an arc-shaped member havinga hook at each end,

said sections having recesses near the point where they join forreceiving said hooks.

5. A demountable rim comprising two sections of a general channel shapeto hold the tire, stationary hooks and pins for holding said sectionstogether, and a-lockingdevice consisting of an arc-shaped member havinga hook at each end, said sections having recesses near the point wherethey join for receiving said hooks, one of said sections havin a flan eextending outwardly beyond the e ge of the locking device when inposition, said flange having a recess for receiving an' instrument foldetaching the hook at that end from the rim.

6. A dernountable rim comprising two seer tions, one having an arc ofmore than a semicircle and the other less than a semicircle so thattogether they constitute a cdmplete circular rim, said parts havingstationary means thereon for detachabl holding them together, and amovable loc ing device for preventing their being detached,said-sections fitting each other at their ends along planes locatedangularly with respect to the axis whereby one of them can be drawn outin a straight axial direction when unlocked.

7 A demountable rim having a base consisting of two sections, one havingan are than a semicircle'so that together they constitute a completecircular rim fitting each other at their ends substantially at oppositesides of the circle along planes located angularly with respect to theaxis whereby the longer one of them can be drawn out in a straight axialdirection and having means for holding them together, the shorter onehaving permanent means for preventing its being drawn out axially.

a semicircle and the other less 120 acetate 8. A wheel rim comprisingtwo detachably connected sections, one having fixed flanges on bothsides for supporting both edges of a tire and the other having a fixedflange on one side only for supporting the tire, and a detachablelocking device on the other s'ide for supporting that edge of the tire,

said other sections being removable from the tire and from the firstsection in an axial direction when said locking device is detached buthaving the edges abutting against the edges of the other section onopposite sides of the circle to render it incapable of moving inwardlyin a radial direction.

detachable locking member arranged along the edge of one of saidsections and having hook-shaped ends hooking into slots near the ends ofthe other section.

11. A demountable rim comprising two sections, one having an arc of morethan a semicircle and the other less than a semicircle so that togetherthey constitute a complete circular rim and an are shaped detachablelocking member arranged along the edge of the longer of said sectionsand engaging the ends of the shorter section, whereby said lockingmember is held in position by the factthat its ends area distance apartshorter than the diameter.

12. A demountable rim comprising two sections, one having an arc of morethan a semi-circle and the other less than a semicircle so that togetherthey constitute a complete circular rim, and an are shaped detachablelocking member arranged along the edge of the longer of said sectionsand having hook-shaped ends hook-ing into slots near the ends of theshorter section.

13. The combination with a rim having a base made up a plurality ofsections arranged end to end to form a complete circle, of a detachablelocking member therefor in the form of an are longer than a semi-circleand materially less than a complete circle engaging both ends of one ofsaid sections at substantially opposite sides of the rim.

14:. Awheel rim comprising a rigid section adapted to hold a tire on itsouter surface and constituting more than a se1nicircle, said sectionbeing bodily removable from the tire and from the rest of the rim in anaxial direction and incapable of motion radially inwardly, and means forholding said section against such removal.

' 15. A wheel rim having a base consisting of two detachably connectedsections together making a complete circle adapted to receive a tire anda pair of head rings on its outer surface, one of said sections ontending more than half Way around the rim in one piece and beingremovable from the other and from the tire in an axial direction throughthe tire and bead rings.

16. A wheel rim consisting of two detachably connected sections ofunequal length, one short section having fixed flanges on both sides forholding both edges of a tire and the other longer section having a fixedflange on one side only for directly holding the tire, and a detachablelocking device on the other side for holding that edge of the tire, saidother sections being removable from the tire and from the first sectionin an axial direction when said looking device is detached but beingincapable of moving inwardly in a radial direction.

17. A demountable rim consisting of two detachably connected unequalsections together constituting a substantially complete cylinder havingmeans for directly supporting a pneumatic tire on the outer cylindricalsurface, the meeting ends of which sections are in two nearly radialconverging planes each forming an acute angle with the plane of the edgeof the rim, the longer of saidsections being removable axially from theshorter one when the tire is in position on the shorter section.

In testimony whereof we have hereunto affixed our signatures.

- CHARLES L. PETERS.

ALVIN L. JOHNSON.

crater/ Correction in Letters Patent No, 1,326,418.

It is hereby certified that in Letters Patent No. 1,326,418, grantedDecember Worcester, Massachusetts, for an improvelnent inDemountableRims, an error 51, claim 1, for the Word movable readremovable; and that the said Letters Patent should be read with thiscorrection therein that the same. maycenform to the record of the casein the Patent Offiee.

Signed and sealed this 8th day of Jiine, A. D., 1920.

M. H. GOULSTON,

[SEAL] Acting Commissioner of Patents.

30, 1919, upon the application 01 Charles L. Peters and Alvin L.Johnson, of

appears in the printed specification requiring correction as follows:Page 2, line.

